实用肝脏病杂志 ›› 2021, Vol. 24 ›› Issue (2): 220-223.doi: 10.3969/j.issn.1672-5069.2021.02.018

• 非酒精性脂肪性肝病 • 上一篇    下一篇

应用MRI多回波水脂分离技术评估代谢相关性脂肪性肝病患者肝脏脂肪含量的临床意义

徐春玲, 苗重昌, 刘雨成, 张雪, 史曙光, 李树芸   

  1. 222061 江苏省连云港市 徐州医科大学附属连云港市第一人民医院影像科
  • 收稿日期:2020-11-11 出版日期:2021-03-10 发布日期:2021-04-30
  • 作者简介:徐春玲,女,43岁,大学本科,主治医师。E-mail:xuchunling25681@163.com
  • 基金资助:
    江苏省自然科学基金资助项目(编号:2019437)

Clinicalimplications of MRI multi-echo dixon technique in diagnosing hepatic steatosis in patients with metabolic associated fatty liver disease

Xu Chunling, Miao Chongchang, Liu Yucheng, et al   

  1. Department of Radiology, First People's Hospital, Affiliated to Xuzhou Medical University, Lianyungang 222061,Jiangsu Province, China
  • Received:2020-11-11 Online:2021-03-10 Published:2021-04-30

摘要: 目的 探讨运用MRI多回波水脂分离技术评估代谢相关性脂肪性肝病(MAFLD)患者肝脏脂肪含量的效能。方法 2018年6月~2019年10月我院收治的MAFLD患者97例和同期健康体检者46例,接受MR检查,应用MRI多回波水脂分离技术检测肝脂肪分数(FF),对MAFLD患者常规行肝穿刺活检,应用受试者工作特征曲线(ROC)分析FF诊断肝脏脂肪变性程度的效能。结果 MAFLD组BMI、ALT、AST、TG、TC和FF分别为(26.3±3.1)kg/m2、(85.6±5.4)U/L、(76.5±4.9)U/L、(3.2±1.0)mmol/L、(7.4±1.2)mmol/L和(23.7±5.3)%,显著高于健康人【分别为(23.2±2.2) kg/m2、(28.3±3.5) U/L、(26.5±4.1)U/L、(1.5±0.4)mmol/L、(3.9±0.8)mmol/L和(10.3±3.9)%,P<0.05】;28例中度组和18例重度组FF分别为(25.3±5.5)%和(44.7±6.7)%,与51例轻度组比,差异显著【(15.5±4.0)%,P<0.05】;以FF分别等于16.4%、26.4%和44.6%为截断点,其诊断轻度、中度和重度肝脏脂肪变性的ROC曲线下面积(AUC)分别为0.728(95%CI:0.628~0.829)、0.870(95%CI:0.784~0.957)和0.996(95%CI:0.985~1.000)。结论 MRI多回波水脂分离技术对诊断和区分MAFLD患者肝脏脂肪变性严重程度具有较高的效能。

关键词: 代谢相关性脂肪性肝病, 磁共振成像, 多回波水脂分离技术, 肝脏脂肪变, 诊断

Abstract: Objective The purpose of this study was to explore the clinical implications of magnetic resonance imaging multi-echo dixon technique in diagnosing hepatic steatosis in patients with metabolic associated fatty liver disease (MAFLD). Methods 97 MAFLD patients and 46 healthy persons were enrolled in this study between June 2018 and October 2019, and the proton density fat fraction (PDFF) was detected by MRI ME Dixon technique. All patients with MAFLD underwent routine liver biopsies. The diagnostic efficacy of MRI-PDFF for severity of liver steatosis was analyzed by receiver operating characteristic (ROC) curves. Results The BMI, serum ALT, AST, TG and TC levels as well as fat fraction (FF) in patients with MAFLD were (26.3±3.1)kg/m2, (85.6±5.4)U/L, (76.5±4.9)U/L, (3.2±1.0)mmol/L, (7.4±1.2)mmol/L and (23.7±5.3)%, all significantly higher than 【(23.2±2.2) kg/m2,(28.3±3.5) U/L,(26.5±4.1)U/L,(1.5±0.4)mmol/L,(3.9±0.8)mmol/L and (10.3±3.9)%, respectively, P<0.05】 in the control; the FF in 28 patients with moderate and in 18 patients with severe hepatic steatosis were (25.3±5.5)% and (44.7±6.7)%, both significantly higher than 【(15.5±4.0)%, P<0.05】 in 51 patients with mild hepatic steatosis; the area under receiver operating characteristic curve (AUC) of FF in diagnosing mild, moderate and severe hepatic steatosis were0.728(95%CI:0.628-0.829), 0.870(95%CI:0.784-0.957) and 0.996(95%CI:0.985-1.000), when 16.4%, 26.4% and 44.6% was set as the cut-off-value.Conclusion MRI multi-echo dixon technique is of importance in diagnosing hepatic steatosis in patients with MAFLD, which warrants further investigation.

Key words: Metabolic associated fatty liver disease, Magnetic resonance imaging, Multi-echo dixon technique, Hepatic steatosis, Diagnosis